Roll crimping machine



Dec. 1, 1953 H. c. BRYANS 6 6 ROLL CRIMPING MACHINE Filed March 10, 1952 5 Sheets-Sheet 2 (q INVENTOR.

Dec. 1, 1953 H. c. BRYANS ROLL CRIMPING MACHINE 3 Sheets-Sheet 5 Filed March 10, 1952 INVENTOR. .Hrry C 37190775 Patented Dec. 1, 1953 ROLL 'CRIMPING MACHINE Harry Christopher Bryans, Three Rivers, Quebec,

Canada,

assignor to Canadian International Paper Company, Montreal, Quebec, Canada, a corporation of Quebec Application March 10, 1952, Serial No. 275,820

Claims.

This invention relates to new and useful improvements in roll crimping machines generally and particularly seeks to provide novel crimping devices for such machines.

This invention is an improvement on roll crimping machines of the type disclosed in U. S. Patent 2,533,993, granted to H. C. Bryans on December 12, 1950.

It is an object of this invention to provide a novel crimping machine particularly suitable for crimping the ends of the wrappers on various sizes of rolls of paper such as newsprint and in which the paper roll is supported on a pair of driven carrier rolls, one of which is fitted with a pair of adjustably mounted assemblies.

Another object of this invention is to provide a machine of the character stated which crimps and Wraps the wrapper ends by two successively applied crimping actions at each point of contact 0f the crimper elements with the projecting paper wrapper to effectively smooth each pleated or crimped wrapper segment before formation of the next following pleat or crimp has been started.

Another object of this invention is to provide a machine of the character stated which has fixed crimper elements and movable crimper elements, the latter being operable through cam follower and linkage connections actuated by serial contact with that carrier roll which does not carry the crimping assemblies.

A further object of this invention is to provide a machine of the character stated which is simple in design, rugged in construction and economical to manufacture.

With these and other objects in view, the nature of which will be more apparent, the invention will be more fully understood by reference to the drawings, the accompanying detailed description, and the appended claims.

In the drawings,

Fig. 1 is a top plan view of a roll crimping machine containing crimping assemblies constructed in accordance with this invention;

Fig. 2 is an enlarged fragmentary top plan view showing one end of the machine in greater detail; a

Fig. 3 is an enlarged transverse section taken along line 3-3 of Fig. 1; and

Fig. 4 is a perspective view of the roll crimping machine with a wrapped and crimped roll of paper in position thereon.

Referring to the drawings in detail, the invention as illustrated is embodied in a roll crimping .machine including a plain carrier roll and a crimping slotted carrier roll ll rotatably mounted in spaced parallel relationship immediately below the level of the finishing room fioor in a paper mill. The rolls Ill and H are gear driven from any suitable source of power. An ejector roller [2 suitably operated by a hydraulic or air cylinder (not shown) is located between the two rolls and serves to eject the finally crimped roll of paper from the carrier rolls.

Each end of the slotted carrier roll II is provided with a collar [3 slidably mounted thereon and operatively connected through slots i l to collars threadably engaged with opposite end portions of an adjusting screw l5. It will be appreciated that the opposite ends of the screw [5 are threaded with opposite hand threads in order that rotation of the screw 15 in either direction will serve to move the collars l3 towards or away from each other. One end of the adjusting screw l5 extends beyond its associated carrier roll Ii and carries a hand wheel it and locking wheel Ilia usable to adjust the spacing between the collars l3.

A sleeve it is also slidably mounted adjacent each end of the slotted carrier roll H and is located inboard of the associated collar l3 and provides the supporting means for the crimping elements which will hereinafter be described in detail. Each collar i3 is provided with a plurality of lugs it which are disposed in alignment with corresponding lugs l9 formed integral with the sleeve ll. Each of the lugs l9 has rigidly aiiixed thereto a stud 29 which carries a compression spring 2! interposed between the lugs l3 and 9 to resiliently bias the sleeve H away from the collar 13. Suitable lock nuts 22, 22 are provided on the projecting end of the stud 29 in order to provide an abutment limiting the movement of the sleeve ll away from the collar I3 and to provide for adjustment of the eifective force which the spring 2| can apply.

Firmly attached to each sleeve ii is a plurality of generally quadrilateral mounting plates 23. Each mounting plate carries a'crimping assembly but only one such will be here described as they are all identical. A short connecting link 24 is pivotally attached to the sleeve I! through a lug or boss 25, as shown in Fig. 3. The free end of the short link 24 is bifurcated as at 26 and is pivotally connected to and adjacent the end of a long two-piece connecting link generally indicated at 27. The link 21 includes a leading section 28 and a follower section 29 overlapping each other and being provided with slots 3d so as to be adjustably secured by bolts 3i. The leading sec- 3 tion carries a cam follower 32 at its free end. The follower section 29 has a bifurcated end 33 pivotally connected to the free end of a short rocker arm 34 secured to one end of a pivot stud 35 which in turn is rotatably mounted in and extends through an bearing boss; 35 and the outer f ollowing corner of the. associated mounting plate 23. Securely mounted to the rear end of the pivot stud 35 and behind the mounting plate is a long rock arm 31 disposed in alignment with. the arm 34. The extended end portion of the rock arm 31 is firmly attached to the eceof an, elliptica-lly shaped movable crimping e ement; 3B. Firmly at: tached to the mounting plate 23:.onthe rear.- side thereof is a semi-oval fixed crimping element 39 provided with an elliptically shaped cut-out portion on the trailing edge portion adapted to re ceive the movable crimping element. A tension; spring 40 is attached between a stud 4! carried on the follower section 29 and a lug 42-. carried-on thesl reh elfiil w.

fl-h o ti n .Q he. r mp, e e ha sm-.1 mit nu us. with. ro a io hi. t e posit v l rive arri r;re -1s.-. .As sha -minimal 3, e. ar e roll are. ive .clocinvise, thusimovi-ng the panes 1 c0 hterc1 .ckW sc-.. he p ur ity int rim-pine elements bodily moves, clockwise with the slotted carrier roll. The fixed or leading crimpingele mi ht lli t makes contact withthe extended r0111 Wrapper immediately crimping a s gmen her f. e instrhe 1:011 and face, and then continuing, on to wipe the crimped section against theroll and throu h. the. overlapping arcs of the crimperzand th paperroll. However, Just. low

hcifixedcrimper movesoffl the rollandbefore the Succeeding. crimper ismaking. contact at anew point on the. extended. roll wrapper the. cazrrfollower 32 ;.comes in. contact with the. plain carrier roll III-h. This forces the. movable; crimping, element .38; outwardly away from. the fixed crimping element. 39 in av quick stroke. over. the. newly crimped segment to a point just in front of the netrsucceedingzfixed .crimper. just as thelatter is making. its. initial contact. with; the roll. wrapper. Then the; cam follower. breakscontact. with. the plainscarrier rolLand the-tension spring 35'. re,- tractsthemouable. crimper to its resting. position adjacent theefixed; crimper. The next. crimping unihrepeats theaction of-..course, but at a succeedinggpointa on. the periphery of the roll. The degree of movementof-i the movablercrimping element 3B :may:,be varied; by either shortening-or lengthening the-two .-pie ce link a1 V The actioneof: this crimpingdeviceivery closely approximatesthe action formerly effectedv by manual; operation, with .bothhands. The movable crimper .not only-effects an. additional wiping actionitothenewly crimpedv segment but-assists in theiinitial crimping of, the next .succeeding'wrapper segment.

thi invention. provides an improved cr m in ev c for. roll; crimpingmachines which is capable o being, used in, connection with @QQ S ed. P rser-,r lls....With0ut. tearin the wrapper and in, a manner nearly duplicatin manual crimpingofroll wrappers. i g

It1,is', of course, tolbe understood. that va ious details of arrangements and proportions of parts may be modified within the scope of the appended claims.

I claim: 1. ma machine for crimping the projecting ends'of a wrapper overthe ends of a rollof paper coveredthereby wherein is provided a. pair of earrierrolls for supporting a wrappedrolhof' carrier. rol lsfor supporting rolls in the same direction,

tw en s i rcel i h 4 paper, means for positively driving said carrier rolls in the same direction, a pair of collars slidably mounted on one of said carrier rolls and means for positively adjusting the spacing between said collars; the combination of a plurality OftWOyPfiJft crimper elements connected. to each of: said cellars, one partof each crimper element being relatively movable with respect to the other, and means for imparting cyclic movement to each such movable part during each revolution of the associated carrier roll.

a machinefor crimping the projecting ends. ofiawrapper over the ends of a roll of paper covered wherein is provided a pair of a wrapped roll of paper, meansv for positively driving said carrier a pair of collars slidably mounted on one of said carrier rolls and means for positively adjusting the spacing becombination of v a sleeve he th mou ted o sa d fi -m m ries a rie rollihw rd ro e h o a en r i ri-l connected thereto, a plurality of radially extendns ew i n p etcs i d ed a 01 said s e es Mix @r element, i idly s ured to h i her a e f. B t .01. sa nt g la s. a movable crimper element operably associated with said fixed. crimper ,element and cam followrs a d. ka es. or ra r ri b a d s eev and, said mounting; plates, and connectedwith saidmovable crimper elements to impartv cyclic w en t e aai el ers and li ae sabeiin Sc a lr ee as t H have; cyclic motionimparted thereto. onceduring; each revolution of thecarrier r011 upon which they are mounted as, the, result of contact of the camv followers with the adjacent carrier roll; ,7 g I 3. In a machine for crimping the projecting ends of akwrapper over the ends-of aroll of paper covered; thereby whereinis provided; a pair of carrier rolls for. supporting a. w' rap ed roll of paper, means for positively driving saidv carrier rolls in. the,samedirection aa pair of. collars slid.- ably mounted on one of said carrier rolls; and

.means; for 1 positivelw adjusting, the spacing between, said collars; thecombinati'on of asleeve slidably, mounted; on; said; first mentioned; carrier rolll inwardly 0t each of said collars and resiliently: connected;thereto, aplurality; of ra diallyi extending mounting, plates rigidly aflixed to each of said sleeves; a, fixed crimper element rigiidly: secured, tov the;- inner face of eachof; said mounting plates;. az-movable :crimper. element. op,- erably; associateohwith saidrfixed crimper elements, a pivot stud rotatably mounted. in; said mounting plate-sands having its ends extending beyond the faces. thereof; a: rock. arm: rigidly. at!

tached: to the.- innerzend of, said: pivot stud :and having itsfreelendirigidiyr affixed; to said. movable crimper element, a. seoond rock' armirigidly at tached to the outer end of saidpivotstudsinaalign- 'mentwithi said firstyrrientionedzrock arm, a connectin'gjinlc having. one: end. pivotally connected to the; free; end; of: said; outer: rock.,arm' and. its

other end providedawiths acam follower, asecondi connecting. link: having; one. end; pivotally connected to said first link adjacent the cam:fol.-

"lower endthereofi audits otherenwpiv-otally; connected to said sleeveelandiresilient vmeanssfon con,- stantl'ybiasing; said movable: crimpen element towards-contact with saidtfixed ,crimper: element, said connecting links heingaso' proportionedsthat the-camfollower end-of. said/first mentionedzconnesting link: w-ill contacttheother-of said carrier roll's onceduringeach revolutiom whereby to part a single cycle of motion to said movable crimper element.

4. In a machine for crimping the projecting ends of a wrapperover the ends of a roll of paper covered thereby wherein is provided a pair of carrier rolls for supporting a wrapped roll of paper, means for positively driving said carrier rolls in the same direction, a pair of collars slidably mounted on one of said carrier rolls and means for positively adjusting the spacing between said collars; the combination of a sleeve slidably mounted on said first mentioned carrier roll inwardly of each of said collars and resiliently connected thereto, a plurality of radially extending mounting plates rigidly aflixed to each of said sleeves, a fixed crimper element rigidly secured to the inner face of each of said mounting plates, a movable crimper element operably associated with said fixed crimper element, a pivot stud rotatably mounted in said mounting plate and having its ends extending beyond the faces thereof, a rock arm rigidly attached to the inner end of said pivot stud and having its free end rigidly affixed to said movable crimper element, a second rock arm rigidly attached to the outer end of said pivot stud in alignment with said first mentioned rock arm, a connecting link having one end pivotally connected to the free end of said outer rock arm and its other end provided with a roller cam follower rotatably mounted thereon, a

second connecting link having one end pivotally connected to said first link adjacent the cam follower end thereof and its other end pivotally connected to said sleeve, and resilient means for constantly biasing said movable crimper element towards contact with said fixed crimper element, said connecting links being so proportioned that the cam follower end of said first mentioned connecting link will contact the other of said carrier rolls once during each revolution whereby to impart a single cycle of motion to said movable crimper element.

5. In a machine for crimping the projecting ends of a Wrapper over the ends of a roll of paper covered thereby wherein is provided a pair of carrier rolls for supporting a wrapped roll of paper, means for positively driving said carrier rolls in the same direction, a pair of collars slidably mounted on one of said carrier rolls and means for positively adjusting the spacing between said collars; the combination of a sleeve slidably mounted on said first mentioned carrier roll inwardly of each of said collars and resiliently connected thereto, a plurality of radially extending mounting plates rigidly aifixed to each of said sleeves, a fixed crimper element rigidly secured to the inner face of each of said mounting plates, a movable crimper element operably associated with said fixed crimper element, a pivot stud rotatably mounted in said mounting plate and having its ends extending beyond the faces thereof, a rock arm rigidly attached to the inner end of said pivot stud and having its free end rigidly affixed to said movable crimper element, a second rock arm rigidly attached to the outer end of said pivot stud in alignment with said first mentioned rock arm, a connecting link having one end pivotally connected to the free end of said outer rock arm and its other end provided with a roller cam follower rotatably mounted thereon, a second connecting link having one end pivotally connected to said first link adjacent the cam follower end thereof and its other end pivotally connected to said sleeve, and resilient means for constantly biasing said movable crimpor element towards contact with said fixed crimper element, said connecting links being so proportioned that the cam follower end of said first mentioned connecting link will contact the other of said carrier rolls once during each revolution whereby to impart a single cycle of motion to said movable crimper element, said first mentioned connecting link being formed from two pieces adjustably secured together whereby to permit adjustment in distance between the pivotal connections thereof and to vary the amount of movement of said movable crimper element during each cycle of operation thereof.

HARRY CHRISTOPHER BRYANS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 698,520 Knapp et a1. Apr. 29, 1902 2,066,414 Milmoe Jan. 5, 1937 

